Both just sit for the most part.
Trailer is cool, does the tree job once a year and sits. To tall for most jobs is why I got the lower Karavan. Figure I can get about 2k for it.
El Camino, 1987 is the same. Great backup car, always runs but the battery drains if now disconnected. I am the second owner, no wrecks besides a parking rash and garage fire burns. Around 500k but burns no oil (305), 3rd tranny, BGN rear posi rear. Have a 5.3/4L60 ready for it with everything, harness, SSBC 4 disc brake kit, tubular front L/UCA and LT1 spindles. LT1/16 rims and 225 Kumos. IROC mirrors and a shell. Seeing these on FB for 4-5k , stock, 10K+ for cherry. Also have a new cowl induction hood and the air dam is aftermarket.
I think starting at 10K is a good idea. Picture below was on a calender.